With the development of information technology, big data has had a positive impact on the development of various industries. However, the continued growth of data has led to difficulties in data sharing. Blockchain, with its information sharing characteristics and decentralized management principles, is expected to become the new engine for building a future data sharing platform. Blockchain-based data sharing is useful for recording user transactions and sharing of multi-platform data. However, this technology not only has challenges in information storage, but also risks in third-party transactions. In this article, we propose a big data sharing and transaction framework based on blockchain. This framework uses the blockchain decentralization and openness idea to establish a big data transaction platform for multiple users. For the problem of distributed secure storage of big data in the blockchain, we propose a data-tamperproof mechanism that introduces a cryptographic algorithm to prevent transaction data from being tampered with during user storage. The purpose of this article is to ensure transaction security and data reliability when trading in the blockchain.

中文翻译：

---

基于区块链的大数据网络共享和防篡改框架

随着信息技术的发展，大数据对各个行业的发展产生了积极的影响。但是，数据的持续增长给数据共享带来了困难。具有信息共享特性和分散管理原则的区块链有望成为构建未来数据共享平台的新引擎。基于区块链的数据共享对于记录用户交易和共享多平台数据非常有用。但是，该技术不仅在信息存储方面面临挑战，而且在第三方交易中也存在风险。在本文中，我们提出了一个基于区块链的大数据共享和交易框架。该框架使用区块链去中心化和开放性思想为多个用户建立大数据交易平台。针对区块链中大数据的分布式安全存储问题，我们提出了一种防数据篡改机制，该机制引入了一种加密算法来防止交易数据在用户存储期间被篡改。本文的目的是确保在区块链中进行交易时的交易安全性和数据可靠性。